WELDABILITY OF STEEL - Practice Mode

1) Why deposited bead is not in uniform size?
Correct Answer: Variation in speed of travel and angle
2) Which element is present in contact electrodes in large proportion?
Correct Answer: Iron powder
3) Which size of filler rod should be used to weld 2.5mm thickplates,using nozzle 5 by leftward technique?
Correct Answer: 2.00 mm
4) Which process causes the increase in the strength of part after fabrication?
Correct Answer: Hardening
Explanation:

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5) How the repairs of cracks in cast iron component carried out?
Correct Answer: Local preheating, leftward welding technique flame heating each layer